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Your Bosch Dishwasher Not Draining? 6 DIY Tips Before Calling A Technician


When your Bosch dishwasher isn’t draining, you don’t necessarily have to race out to purchase a new one. In many cases, the problem is minor and can be fixed without the assistance of a professional. However, in some cases, you may need a new part. If you want to try troubleshooting, there are some steps you can take.

  1. Filter

When you don’t rinse off your dishes completely – which more than likely you don’t because you opted for a dishwasher to reduce your share of work in the kitchen – the food debris builds up inside of it, especially in the filter. Make sure you power your dishwasher off before checking the filter. Take the dish rack on the bottom out before you check. Look for the filter tube and make sure it’s not clogged. You can remove this piece by twisting it counterclockwise.

  1. Drain Pump Clog                                                                               

Remove the drain pump cover. A majority of Bosch dishwashers only have a single screw holding the cover on, so removing it with a screwdriver and then using the tab to lift it off should be easy. Check the pump and the impeller blades to make sure they aren’t covered in food. While you have the cover off, you might as well clean it thoroughly even if it doesn’t appear to be a drain pump obstruction that’s causing the problem.

  1. Drain Pump Failure

Your entire drain pump may have failed, which means it won’t pump out the excess water. This isn’t an expensive fix. You’ll just need to replace the pump. It might be easier to hire a professional if you’re unsure of how to do it.

  1. Blockage                                                                                                                     littlethumb

If your Bosch dishwasher isn’t draining, you should check the entire piece of equipment for blockage. For instance, take a look at your garbage disposal to look for a clog. Generally, the food particles aren’t going to make their way past the drain pump and the filter. However, grease and grime may travel through the garbage disposal when it’s hot. After it cools down, it may solidify and clog your pipe.

  1. Air Gap

Remove the cap on the air gap. Evaluate the condition of the funnel located inside of it.

 Drain Hose

Check your drain hose to make sure it’s allowing water and food particles to pass through.

It’s not uncommon for a person to complain of that their Bosch dishwasher isn’t draining. But, it tends to be repairable and usually doesn’t require much money to do so.

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